US$ 14.99
480Hz tuning fork
the unit can sustain at maximum 20amp
Cup is food grade 304 Stainless Steel and the outer part is made of high quality
fixed output Less than 5mV
Screwdriver is designed for recess head screws
Walnut Ridge Electric Car Electronics Engineering Problem Solving Kit 480Hz tuning forkMake your own friction driven car. This kit includes a motor and all the stuff you need to mount the engine to a wood chassis. It's up to you to decide how the engine drives the wheels great problem solving exercise. The kit includes a battery holder, but you need to supply the 1 AA battery to power the motor. As a change up, the motor can also be powered by a 1,000 mAmp solar cell (1. 5v) (not included). Note: Ages 12 & up.
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